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1 : // Copyright 2015 the V8 project authors. All rights reserved.
2 : // Use of this source code is governed by a BSD-style license that can be
3 : // found in the LICENSE file.
4 :
5 : #ifndef V8_COMPILER_JS_INTRINSIC_LOWERING_H_
6 : #define V8_COMPILER_JS_INTRINSIC_LOWERING_H_
7 :
8 : #include "src/base/compiler-specific.h"
9 : #include "src/compiler/common-operator.h"
10 : #include "src/compiler/graph-reducer.h"
11 : #include "src/globals.h"
12 :
13 : namespace v8 {
14 : namespace internal {
15 :
16 : // Forward declarations.
17 : class Callable;
18 :
19 :
20 : namespace compiler {
21 :
22 : // Forward declarations.
23 : class CommonOperatorBuilder;
24 : struct FieldAccess;
25 : class JSOperatorBuilder;
26 : class JSGraph;
27 : class SimplifiedOperatorBuilder;
28 :
29 :
30 : // Lowers certain JS-level runtime calls.
31 : class V8_EXPORT_PRIVATE JSIntrinsicLowering final
32 : : public NON_EXPORTED_BASE(AdvancedReducer) {
33 : public:
34 : enum DeoptimizationMode { kDeoptimizationEnabled, kDeoptimizationDisabled };
35 :
36 : JSIntrinsicLowering(Editor* editor, JSGraph* jsgraph,
37 : DeoptimizationMode mode);
38 395343 : ~JSIntrinsicLowering() final {}
39 :
40 : Reduction Reduce(Node* node) final;
41 :
42 : private:
43 : Reduction ReduceCreateIterResultObject(Node* node);
44 : Reduction ReduceDebugIsActive(Node* node);
45 : Reduction ReduceDeoptimizeNow(Node* node);
46 : Reduction ReduceGeneratorClose(Node* node);
47 : Reduction ReduceGeneratorGetContext(Node* node);
48 : Reduction ReduceGeneratorGetInputOrDebugPos(Node* node);
49 : Reduction ReduceAsyncGeneratorGetAwaitInputOrDebugPos(Node* node);
50 : Reduction ReduceAsyncGeneratorReject(Node* node);
51 : Reduction ReduceAsyncGeneratorResolve(Node* node);
52 : Reduction ReduceGeneratorSaveInputForAwait(Node* node);
53 : Reduction ReduceGeneratorGetResumeMode(Node* node);
54 : Reduction ReduceIsInstanceType(Node* node, InstanceType instance_type);
55 : Reduction ReduceIsJSReceiver(Node* node);
56 : Reduction ReduceIsSmi(Node* node);
57 : Reduction ReduceFixedArrayGet(Node* node);
58 : Reduction ReduceFixedArraySet(Node* node);
59 : Reduction ReduceSubString(Node* node);
60 : Reduction ReduceToInteger(Node* node);
61 : Reduction ReduceToLength(Node* node);
62 : Reduction ReduceToNumber(Node* node);
63 : Reduction ReduceToObject(Node* node);
64 : Reduction ReduceToString(Node* node);
65 : Reduction ReduceCall(Node* node);
66 : Reduction ReduceGetSuperConstructor(Node* node);
67 :
68 : // TODO(turbofan): typedarray.js support; drop once TypedArrays are
69 : // converted to proper CodeStubAssembler based builtins.
70 : Reduction ReduceArrayBufferViewField(Node* node, FieldAccess const& access);
71 : Reduction ReduceArrayBufferViewWasNeutered(Node* node);
72 : Reduction ReduceMaxSmi(Node* node);
73 : Reduction ReduceTypedArrayMaxSizeInHeap(Node* node);
74 :
75 : // TODO(turbofan): collection.js support; drop once Maps and Sets are
76 : // converted to proper CodeStubAssembler based builtins.
77 : Reduction ReduceJSCollectionGetTable(Node* node);
78 : Reduction ReduceStringGetRawHashField(Node* node);
79 : Reduction ReduceTheHole(Node* node);
80 :
81 : // TODO(turbofan): JavaScript builtins support; drop once all uses of
82 : // %_ClassOf in JavaScript builtins are eliminated.
83 : Reduction ReduceClassOf(Node* node);
84 :
85 : Reduction Change(Node* node, const Operator* op);
86 : Reduction Change(Node* node, const Operator* op, Node* a, Node* b);
87 : Reduction Change(Node* node, const Operator* op, Node* a, Node* b, Node* c);
88 : Reduction Change(Node* node, const Operator* op, Node* a, Node* b, Node* c,
89 : Node* d);
90 : Reduction Change(Node* node, Callable const& callable,
91 : int stack_parameter_count);
92 :
93 : Graph* graph() const;
94 : JSGraph* jsgraph() const { return jsgraph_; }
95 : Isolate* isolate() const;
96 : CommonOperatorBuilder* common() const;
97 : JSOperatorBuilder* javascript() const;
98 : SimplifiedOperatorBuilder* simplified() const;
99 : DeoptimizationMode mode() const { return mode_; }
100 :
101 : JSGraph* const jsgraph_;
102 : DeoptimizationMode const mode_;
103 : };
104 :
105 : } // namespace compiler
106 : } // namespace internal
107 : } // namespace v8
108 :
109 : #endif // V8_COMPILER_JS_INTRINSIC_LOWERING_H_
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